Another bug?

Asked by Andrew McAdams

Hi! I am continuing to experience issues with maddump (see my previous question https://answers.launchpad.net/maddump/+question/699544).

After resolving this bug (please see https://bugs.launchpad.net/mg5amcnlo/+bug/1951638), another problem appeared with the standard launch from appendix D.3 of https://arxiv.org/pdf/1812.06771.pdf:

import model DM_mesons_2
import_events decay example_MesonFlux.hepmc
decay pi0 > y1 a, y1 > xd xd~
define darkmatter xd
add process interaction @DIS
add process interaction @electron
output DP_electron
launch DP_electron
set flux_norm 2.0e20
set prod_xsec_in_norm false
set d_target_detector 5650.0
set detector_density 3.72
set off-axis false
set parallelepiped True
set x_side 187.0
set y_side 69.0
set depth 200.0
set ncores 16
set testplot True
set gvd11 -3.333333e-4
set gvu11 6.666666e-4
set gvd22 -3.333333e-4
set gvu22 6.666666e-4
set gvd33 -3.333333e-4
set gvu33 6.666666e-4
set gvl11 -1.000000e-3
set gvl22 -1.000000e-3
set gvl33 -1.000000e-3
set my1 scan1:[0.01*i for i in range(1,14)]
set mxd scan1:[0.01/3.*i for i in range(1,14)]
set wy1 auto

Exception :
Please report this bug to developers

I attach the log and debug files below:
______________________________________________
The log is
______________________________________________

INFO: Create the next param_card in the scan definition
INFO: change parameter mass with code (5000001,) to 0.01
INFO: change parameter mass with code (5000521,) to 0.00333333333333
INFO: Computing the width set on auto in the param_card.dat
************************************************************
* *
* W E L C O M E to *
* M A D G R A P H 5 _ a M C @ N L O *
* *
* *
* * * *
* * * * * *
* * * * * 5 * * * * *
* * * * * *
* * * *
* *
* VERSION 3.3.0 2021-11-12 *
* *
* The MadGraph5_aMC@NLO Development Team - Find us at *
* https://server06.fynu.ucl.ac.be/projects/madgraph *
* and *
* http://amcatnlo.web.cern.ch/amcatnlo/ *
* *
* Type 'help' for in-line help. *
* Type 'tutorial' to learn how MG5 works *
* Type 'tutorial aMCatNLO' to learn how aMC@NLO works *
* Type 'tutorial MadLoop' to learn how MadLoop works *
* *
************************************************************
load MG5 configuration from ../input/mg5_configuration.txt
set fastjet to fastjet-config
lhapdf-config does not seem to correspond to a valid lhapdf-config executable.
Please set the 'lhapdf' variable to the (absolute) /PATH/TO/lhapdf-config (including lhapdf-config).
Note that you can still compile and run aMC@NLO with the built-in PDFs
 MG5_aMC> set lhapdf /PATH/TO/lhapdf-config

None does not seem to correspond to a valid lhapdf-config executable.
Please set the 'lhapdf' variable to the (absolute) /PATH/TO/lhapdf-config (including lhapdf-config).
Note that you can still compile and run aMC@NLO with the built-in PDFs
 MG5_aMC> set lhapdf /PATH/TO/lhapdf-config

Using default text editor "vi". Set another one in ./input/mg5_configuration.txt
set automatic_html_opening False --no_save
/home/name/Downloads/mg5_te/models/DM_mesons_2
import model /home/name/Downloads/mg5_te/models/DM_mesons_2
INFO: Change particles name to pass to MG5 convention
Kept definitions of multiparticles l- / j / vl / l+ / p / vl~ unchanged
Defined multiparticle all = g ghg ghg~ u c d s b u~ c~ d~ s~ b~ a gha gha~ ve vm vt mu- ve~ vm~ vt~ mu+ t t~ pi0 pi+ eta omega rho etaprime z w+ ghz ghwp ghwm h xr xc y1 pi- w- ghz~ ghwp~ ghwm~ xc~ e- ta- xd e+ ta+ xd~
compute_widths 5000001 --path=DP_electron/Cards/param_card.dat
Please note that the automatic computation of the width is
    only valid in narrow-width approximation and at tree-level.
INFO: get decay diagram for y1
Vertexlist of this model has not been searched.Automatically run the model.find_vertexlist()
Found 8 stable particles
Pass to numerical integration for computing the widths:
INFO: More info in temporary files:
    /home/name/Downloads/mg5_te/bin/tmp5CI_O1/temp_decay/index.html
INFO: set output information to level: 20
INFO: compile directory
INFO: Running Survey
INFO: P0_y1_xdxdx
INFO: P0_y1_ccx
INFO: P0_y1_uux
INFO: P0_y1_mummup
INFO: P0_y1_emep
INFO: P0_y1_bbx
INFO: P0_y1_ddx
INFO: P0_y1_ssx
INFO: P0_y1_bdx
INFO: P0_y1_vevex
INFO: P0_y1_vmvmx
INFO: P0_y1_vtvtx
INFO: Idle: 0, Running: 4, Completed: 8 [ current time: 17h03 ]
Note: The following floating-point exceptions are signalling: IEEE_INVALID_FLAG
INFO: Idle: 0, Running: 3, Completed: 9 [ 4s ]
Note: The following floating-point exceptions are signalling: IEEE_INVALID_FLAG
Note: The following floating-point exceptions are signalling: IEEE_INVALID_FLAG
Note: The following floating-point exceptions are signalling: IEEE_INVALID_FLAG
INFO: Idle: 0, Running: 0, Completed: 12 [ 5.5s ]
INFO: End survey
INFO: Combining Events
INFO: fail to reach target 10000
INFO: storing files of previous run
INFO: Done
INFO:
Results written to DP_electron/Cards/param_card.dat
INFO: Update the dependent parameter of the param_card.dat
/home/name/Downloads/mg5_te/models/DM_mesons_2
import model /home/name/Downloads/mg5_te/models/DM_mesons_2
INFO: Change particles name to pass to MG5 convention
Kept definitions of multiparticles l- / j / vl / l+ / p / vl~ unchanged
Defined multiparticle all = g ghg ghg~ u c d s b u~ c~ d~ s~ b~ a gha gha~ ve vm vt mu- ve~ vm~ vt~ mu+ t t~ pi0 pi+ eta omega rho etaprime z w+ ghz ghwp ghwm h xr xc y1 pi- w- ghz~ ghwp~ ghwm~ xc~ e- ta- xd e+ ta+ xd~
************************************************************
* *
* W E L C O M E to M A D S P I N *
* *
************************************************************
set spinmode none
set cross_section {0:1.0}
set new_wgt BR
set input_format hepmc
import DP_electron/Events_to_decay/example_MesonFlux.hepmc
INFO: Setup the code for pure decay mode
import model /home/name/Downloads/mg5_te/models/DM_mesons_2 DP_electron/Cards/param_card.dat
INFO: detected model: /home/name/Downloads/mg5_te/models/DM_mesons_2. Loading...
Defined multiparticle p = g u c d s u~ c~ d~ s~
Defined multiparticle j = g u c d s u~ c~ d~ s~
Defined multiparticle l+ = mu+ e+
Defined multiparticle l- = mu- e-
Defined multiparticle vl = ve vm vt
Defined multiparticle vl~ = ve~ vm~ vt~
Pass the definition of 'j' and 'p' to 5 flavour scheme.
Defined multiparticle all = g ghg ghg~ u c d s b u~ c~ d~ s~ b~ a gha gha~ ve vm vt mu- ve~ vm~ vt~ mu+ t t~ pi0 pi+ eta omega rho etaprime z w+ ghz ghwp ghwm h xr xc y1 pi- w- ghz~ ghwp~ ghwm~ xc~ e- ta- xd e+ ta+ xd~
define all = 21 82 -82 2 4 1 3 5 -2 -4 -1 -3 -5 22 9000001 -9000001 12 14 16 13 -12 -14 -16 -13 6 -6 111 211 221 223 113 331 23 24 9000002 9000003 9000004 25 5000511 5000512 5000001 -211 -24 -9000002 -9000003 -9000004 -5000512 11 15 5000521 -11 -15 -5000521
define all = 21 82 -82 2 4 1 3 5 -2 -4 -1 -3 -5 22 9000001 -9000001 12 14 16 13 -12 -14 -16 -13 6 -6 111 211 221 223 113 331 23 24 9000002 9000003 9000004 25 5000511 5000512 5000001 -211 -24 -9000002 -9000003 -9000004 -5000512 11 15 5000521 -11 -15 -5000521
Defined multiparticle all = g ghg ghg~ u c d s b u~ c~ d~ s~ b~ a gha gha~ ve vm vt mu- ve~ vm~ vt~ mu+ t t~ pi0 pi+ eta omega rho etaprime z w+ ghz ghwp ghwm h xr xc y1 pi- w- ghz~ ghwp~ ghwm~ xc~ e- ta- xd e+ ta+ xd~
define l- = 11 13
define l- = 11 13
Defined multiparticle l- = mu- e-
define j = 21 2 4 1 3 -2 -4 -1 -3 5 -5
define j = 21 2 4 1 3 -2 -4 -1 -3 5 -5
Defined multiparticle j = g u c d s b u~ c~ d~ s~ b~
define vl = 12 14 16
define vl = 12 14 16
Defined multiparticle vl = ve vm vt
define l+ = -11 -13
define l+ = -11 -13
Defined multiparticle l+ = mu+ e+
define p = 21 2 4 1 3 -2 -4 -1 -3 5 -5
define p = 21 2 4 1 3 -2 -4 -1 -3 5 -5
Defined multiparticle p = g u c d s b u~ c~ d~ s~ b~
define vl~ = -12 -14 -16
define vl~ = -12 -14 -16
Defined multiparticle vl~ = ve~ vm~ vt~
decay pi0 > y1 a, y1 > xd xd~
launch
INFO: Parsing input event to know how many decay to generate. This can takes few minuts.
INFO: Will use seed 233264884
INFO: generate 6425 decay event for particle pi0
INFO: Will use seed 159831646
decaying event number 100 [0.149754047394 s]
decaying event number 200 [0.333559036255 s]
decaying event number 300 [0.505009174347 s]
decaying event number 400 [0.67059803009 s]
decaying event number 500 [0.836493015289 s]
decaying event number 600 [0.995557069778 s]
decaying event number 700 [1.17664813995 s]
decaying event number 800 [1.34749507904 s]
decaying event number 900 [1.52117109299 s]
Exception :
Please report this bug to developers

           More information is found in 'debug'.

           Please attach this file to your report.

_________________________________________________________
The debug is
_________________________________________________________

Traceback (most recent call last):
  File "/home/name/Downloads/mg5_te/madgraph/interface/extended_cmd.py", line 1544, in onecmd
    return self.onecmd_orig(line, **opt)
  File "/home/name/Downloads/mg5_te/madgraph/interface/extended_cmd.py", line 1493, in onecmd_orig
    return func(arg, **opt)
  File "/home/name/Downloads/mg5_te/PLUGIN/maddump/new_interface/maddump_interface.py", line 482, in do_launch
    self._MDUMP.exec_cmd('launch')
  File "/home/name/Downloads/mg5_te/madgraph/interface/extended_cmd.py", line 1573, in exec_cmd
    stop = Cmd.onecmd_orig(current_interface, line, **opt)
  File "/home/name/Downloads/mg5_te/madgraph/interface/extended_cmd.py", line 1493, in onecmd_orig
    return func(arg, **opt)
  File "/home/name/Downloads/mg5_te/PLUGIN/maddump/new_interface/maddump_run_interface.py", line 229, in do_launch
    self.run_launch()
  File "/home/name/Downloads/mg5_te/madgraph/interface/common_run_interface.py", line 7310, in new_fct
    original_fct(obj, *args, **opts)
  File "/home/name/Downloads/mg5_te/PLUGIN/maddump/new_interface/maddump_run_interface.py", line 370, in run_launch
    'unweighted_events.lhe.gz',interaction_channel)
  File "/home/name/Downloads/mg5_te/PLUGIN/maddump/meshfitter2D.py", line 903, in __init__
    self.store_reweight(input_lhe_evts)
  File "/home/name/Downloads/mg5_te/PLUGIN/maddump/meshfitter2D.py", line 1048, in store_reweight
    for event in lhe_evts:
  File "/home/name/Downloads/mg5_te/madgraph/various/lhe_parser.py", line 316, in next
    return self.next_event()
  File "/home/name/Downloads/mg5_te/madgraph/various/lhe_parser.py", line 346, in next_event
    raise Exception
Exception
Value of current Options:
              text_editor : None
      notification_center : True
       auto_convert_model : False
       cluster_local_path : None
        f2py_compiler_py3 : None
       group_subprocesses : Auto
ignore_six_quark_processes : False
        max_t_for_channel : 99
    loop_optimized_output : True
    cluster_status_update : (600, 30)
           crash_on_error : False
                    ninja : ./HEPTools/lib
                  collier : ./HEPTools/lib
              auto_update : 7
             pythia8_path : None
                hwpp_path : None
low_mem_multicore_nlo_generation : False
                    golem : None
          pythia-pgs_path : ./pythia-pgs
        f2py_compiler_py2 : None
             delphes_path : ./Delphes
              thepeg_path : None
             cluster_type : condor
  default_unset_couplings : 99
        madanalysis5_path : None
         cluster_nb_retry : 1
                      OLP : MadLoop
 acknowledged_v3.1_syntax : False
                  fastjet : fastjet-config
include_lepton_initiated_processes : False
               eps_viewer : None
              web_browser : None
                 pineappl : pineappl
        cluster_temp_path : None
             cluster_size : 100
            cluster_queue : None
             syscalc_path : ./SysCalc
         madanalysis_path : ./MadAnalysis
                   lhapdf : lhapdf-config
             stdout_level : 20
                  nb_core : None
            f2py_compiler : None
               hepmc_path : None
       zerowidth_tchannel : True
                  td_path : ./td
   automatic_html_opening : True
       cluster_retry_wait : 300
      output_dependencies : external
      nlo_mixed_expansion : True
               lhapdf_py3 : /home/name/Downloads/mg5_te/HEPTools/lhapdf6_py3/bin/lhapdf-config
               lhapdf_py2 : None
         fortran_compiler : None
mg5amc_py8_interface_path : None
         loop_color_flows : False
                  samurai : None
      exrootanalysis_path : ./ExRootAnalysis
                  timeout : 60
                    gauge : unitary
                 run_mode : 2
      complex_mass_scheme : False
             cpp_compiler : None
   max_npoint_for_channel : 0
######################################################################
## PARAM_CARD AUTOMATICALY GENERATED BY MG5 ####
######################################################################
###################################
## INFORMATION FOR CKMBLOCK
###################################
BLOCK CKMBLOCK #
      1 2.277360e-01 # cabi
###################################
## INFORMATION FOR DMINPUTS
###################################
BLOCK DMINPUTS #
      1 0.000000e+00 # gvxc
      2 1.000000e+00 # gvxd
      3 0.000000e+00 # gaxd
      4 -3.333333e-04 # gvd11
      5 6.666666e-04 # gvu11
      6 -3.333333e-04 # gvd22
      7 6.666666e-04 # gvu22
      8 -3.333333e-04 # gvd33
      9 6.666666e-04 # gvu33
      10 -1.000000e-03 # gvl11
      11 -1.000000e-03 # gvl22
      12 -1.000000e-03 # gvl33
      13 0.000000e+00 # gad11
      14 0.000000e+00 # gau11
      15 0.000000e+00 # gad22
      16 0.000000e+00 # gau22
      17 0.000000e+00 # gad33
      18 0.000000e+00 # gau33
      19 0.000000e+00 # gal11
      20 0.000000e+00 # gal22
      21 0.000000e+00 # gal33
      22 0.000000e+00 # gnu11
      23 0.000000e+00 # gnu22
      24 0.000000e+00 # gnu33
      25 0.000000e+00 # gvu31
      26 0.000000e+00 # gau31
      27 0.000000e+00 # gvd31
      28 0.000000e+00 # gad31
      29 0.000000e+00 # gvh
###################################
## INFORMATION FOR MASS
###################################
BLOCK MASS #
      6 1.720000e+02 # mt
      11 5.110000e-04 # me
      15 1.777000e+00 # mta
      23 9.118760e+01 # mz
      25 1.250000e+02 # mh
      111 1.349800e-01 # mpi0
      113 7.752600e-01 # mrho
      211 1.395706e-01 # mpi
      221 5.478620e-01 # meta
      223 7.826500e-01 # momega
      331 9.577800e-01 # metaprime
      5000001 scan1:[0.01*i for i in range(1,14)] # my1
      5000511 1.000000e+01 # mxr
      5000512 1.000000e+01 # mxc
      5000521 scan1:[0.01/3.*i for i in range(1,14)] # mxd
      1 0.000000e+00 # d : 0.0
      2 0.000000e+00 # u : 0.0
      3 0.000000e+00 # s : 0.0
      4 0.000000e+00 # c : 0.0
      5 0.000000e+00 # b : 0.0
      12 0.000000e+00 # ve : 0.0
      13 0.000000e+00 # mu- : 0.0
      14 0.000000e+00 # vm : 0.0
      16 0.000000e+00 # vt : 0.0
      21 0.000000e+00 # g : 0.0
      22 0.000000e+00 # a : 0.0
      24 7.982436e+01 # w+ : cmath.sqrt(mz__exp__2/2. + cmath.sqrt(mz__exp__4/4. - (aew*cmath.pi*mz__exp__2)/(gf*sqrt__2)))
      9000002 9.118760e+01 # ghz : mz
      9000003 7.982436e+01 # ghwp : mw
      9000004 7.982436e+01 # ghwm : mw
###################################
## INFORMATION FOR SMINPUTS
###################################
BLOCK SMINPUTS #
      1 1.279000e+02 # aewm1
      2 1.166370e-05 # gf
      3 1.184000e-01 # as (note that parameter not used if you use a pdf set)
###################################
## INFORMATION FOR YUKAWA
###################################
BLOCK YUKAWA #
      6 1.720000e+02 # ymt
      15 1.777000e+00 # ymtau
###################################
## INFORMATION FOR DECAY
###################################
DECAY 6 1.508336e+00 # wt
DECAY 23 2.495200e+00 # wz
DECAY 24 2.085000e+00 # ww
DECAY 25 4.070000e-03 # wh
DECAY 113 1.491000e-01 # wrho
DECAY 5000001 auto # wy1
DECAY 1 0.000000e+00 # d : 0.0
DECAY 2 0.000000e+00 # u : 0.0
DECAY 3 0.000000e+00 # s : 0.0
DECAY 4 0.000000e+00 # c : 0.0
DECAY 5 0.000000e+00 # b : 0.0
DECAY 11 0.000000e+00 # e- : 0.0
DECAY 12 0.000000e+00 # ve : 0.0
DECAY 13 0.000000e+00 # mu- : 0.0
DECAY 14 0.000000e+00 # vm : 0.0
DECAY 15 0.000000e+00 # ta- : 0.0
DECAY 16 0.000000e+00 # vt : 0.0
DECAY 21 0.000000e+00 # g : 0.0
DECAY 22 0.000000e+00 # a : 0.0
DECAY 111 0.000000e+00 # pi0 : 0.0
DECAY 211 0.000000e+00 # pi+ : 0.0
DECAY 221 0.000000e+00 # eta : 0.0
DECAY 223 0.000000e+00 # omega : 0.0
DECAY 331 0.000000e+00 # etaprime : 0.0
DECAY 5000511 0.000000e+00 # xr : 0.0
DECAY 5000512 0.000000e+00 # xc : 0.0
DECAY 5000521 0.000000e+00 # xd : 0.0
DECAY 9000002 2.495200e+00 # ghz : wz
DECAY 9000003 2.085000e+00 # ghwp : ww
DECAY 9000004 2.085000e+00 # ghwm : ww
###################################
## INFORMATION FOR QNUMBERS 111
###################################
BLOCK QNUMBERS 111 # pi0
      1 0 # 3 times electric charge
      2 1 # number of spin states (2s+1)
      3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
      4 0 # particle/antiparticle distinction (0=own anti)
###################################
## INFORMATION FOR QNUMBERS 211
###################################
BLOCK QNUMBERS 211 # pi+
      1 0 # 3 times electric charge
      2 1 # number of spin states (2s+1)
      3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
      4 1 # particle/antiparticle distinction (0=own anti)
###################################
## INFORMATION FOR QNUMBERS 221
###################################
BLOCK QNUMBERS 221 # eta
      1 0 # 3 times electric charge
      2 1 # number of spin states (2s+1)
      3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
      4 0 # particle/antiparticle distinction (0=own anti)
###################################
## INFORMATION FOR QNUMBERS 223
###################################
BLOCK QNUMBERS 223 # omega
      1 0 # 3 times electric charge
      2 3 # number of spin states (2s+1)
      3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
      4 0 # particle/antiparticle distinction (0=own anti)
###################################
## INFORMATION FOR QNUMBERS 113
###################################
BLOCK QNUMBERS 113 # rho
      1 0 # 3 times electric charge
      2 3 # number of spin states (2s+1)
      3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
      4 0 # particle/antiparticle distinction (0=own anti)
###################################
## INFORMATION FOR QNUMBERS 331
###################################
BLOCK QNUMBERS 331 # etaprime
      1 0 # 3 times electric charge
      2 1 # number of spin states (2s+1)
      3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
      4 0 # particle/antiparticle distinction (0=own anti)
###################################
## INFORMATION FOR QNUMBERS 9000001
###################################
BLOCK QNUMBERS 9000001 # gha
      1 0 # 3 times electric charge
      2 1 # number of spin states (2s+1)
      3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
      4 1 # particle/antiparticle distinction (0=own anti)
###################################
## INFORMATION FOR QNUMBERS 9000002
###################################
BLOCK QNUMBERS 9000002 # ghz
      1 0 # 3 times electric charge
      2 1 # number of spin states (2s+1)
      3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
      4 1 # particle/antiparticle distinction (0=own anti)
###################################
## INFORMATION FOR QNUMBERS 9000003
###################################
BLOCK QNUMBERS 9000003 # ghwp
      1 3 # 3 times electric charge
      2 1 # number of spin states (2s+1)
      3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
      4 1 # particle/antiparticle distinction (0=own anti)
###################################
## INFORMATION FOR QNUMBERS 9000004
###################################
BLOCK QNUMBERS 9000004 # ghwm
      1 -3 # 3 times electric charge
      2 1 # number of spin states (2s+1)
      3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
      4 1 # particle/antiparticle distinction (0=own anti)
###################################
## INFORMATION FOR QNUMBERS 82
###################################
BLOCK QNUMBERS 82 # ghg
      1 0 # 3 times electric charge
      2 1 # number of spin states (2s+1)
      3 8 # colour rep (1: singlet, 3: triplet, 8: octet)
      4 1 # particle/antiparticle distinction (0=own anti)
###################################
## INFORMATION FOR QNUMBERS 5000511
###################################
BLOCK QNUMBERS 5000511 # xr
      1 0 # 3 times electric charge
      2 1 # number of spin states (2s+1)
      3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
      4 0 # particle/antiparticle distinction (0=own anti)
###################################
## INFORMATION FOR QNUMBERS 5000512
###################################
BLOCK QNUMBERS 5000512 # xc
      1 0 # 3 times electric charge
      2 1 # number of spin states (2s+1)
      3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
      4 1 # particle/antiparticle distinction (0=own anti)
###################################
## INFORMATION FOR QNUMBERS 5000521
###################################
BLOCK QNUMBERS 5000521 # xd
      1 0 # 3 times electric charge
      2 2 # number of spin states (2s+1)
      3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
      4 1 # particle/antiparticle distinction (0=own anti)
###################################
## INFORMATION FOR QNUMBERS 5000001
###################################
BLOCK QNUMBERS 5000001 # y1
      1 0 # 3 times electric charge
      2 3 # number of spin states (2s+1)
      3 1 # colour rep (1: singlet, 3: triplet, 8: octet)
      4 0 # particle/antiparticle distinction (0=own anti)

What can be wrong here?

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Olivier Mattelaer (olivier-mattelaer) said :
#1

Could you create a bug report and attach your hepmc file to it?

Cheers,

Olivier

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